Update the Example code for some new constants.

Author: thomasvl

Examples/DriveSample/DriveSampleWindowController.m

@@ -242,7 +242,7 @@ - (void)showDownloadSavePanelExportingToPDF:(BOOL)isExportingToPDF {
   savePanel.nameFieldStringValue = suggestedName;
   [savePanel beginSheetModalForWindow:[self window]
                     completionHandler:^(NSInteger result) {
-    if (result == NSFileHandlingPanelOKButton) {
+    if (result == NSModalResponseOK) {
       [self downloadFile:file
         isExportingToPDF:isExportingToPDF
         toDestinationURL:savePanel.URL];
@@ -345,7 +345,7 @@ - (IBAction)uploadFileClicked:(id)sender {
   [openPanel beginSheetModalForWindow:[self window]
                     completionHandler:^(NSInteger result) {
     // Callback.
-    if (result == NSFileHandlingPanelOKButton) {
+    if (result == NSModalResponseOK) {
       // The user chose a file and clicked OK.
       //
       // Start uploading (deferred briefly since

Examples/StorageSample/StorageSampleWindowController.m

@@ -183,7 +183,7 @@ - (IBAction)downloadFileClicked:(id)sender {
   [savePanel beginSheetModalForWindow:self.window
                     completionHandler:^(NSInteger result) {
     // Callback
-    if (result == NSFileHandlingPanelOKButton) {
+    if (result == NSModalResponseOK) {
       NSURL *destinationURL = [savePanel URL];
       GTLRStorageQuery_ObjectsGet *query =
           [GTLRStorageQuery_ObjectsGet queryForMediaWithBucket:storageObject.bucket
@@ -226,7 +226,7 @@ - (IBAction)downloadFileClicked:(id)sender {
                    }
                  }];
                }];
-    }  // result == NSFileHandlingPanelOKButton
+    }  // result == NSModalResponseOK
   }];  // beginSheetModalForWindow:
 }
 
@@ -272,7 +272,7 @@ - (IBAction)uploadFileClicked:(id)sender {
   [openPanel beginSheetModalForWindow:self.window
                     completionHandler:^(NSInteger result) {
     // Callback.
-    if (result == NSFileHandlingPanelOKButton) {
+    if (result == NSModalResponseOK) {
       // The user chose a file and clicked OK.
       //
       // Start uploading (deferred briefly since

Examples/YouTubeSample/YouTubeSampleWindowController.m

@@ -183,7 +183,7 @@ - (IBAction)chooseFileClicked:(id)sender {
   [openPanel beginSheetModalForWindow:self.window
                     completionHandler:^(NSInteger result) {
     // Callback
-    if (result == NSFileHandlingPanelOKButton) {
+    if (result == NSModalResponseOK) {
       // The user chose a file.
       NSString *path = openPanel.URL.path;
       self->_uploadPathField.stringValue = path;